I shoot them in 12, 16 and 20 gauge both rifled and smooth bore barrels. Accuracy is close to the same with either barrel and leading is not a problem. Just run your wet rag then brass brush through the barrel and don't let it build up, there will be no problem.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.